Haikou (Meilan) vs Beihai: which is sunnier?
🇨🇳 China vs 🇨🇳 China · 216 km apart · long-term climate normals (NASA POWER, 2001–2020)
Haikou (Meilan) is the sunnier overall: about 1,736 hours of sunshine a year to Beihai's 1,590. Month by month it's balanced: each has the higher Sunshine Score in 2 months, with 8 within 2 points.
Scores are the 0–100 Sunshine Score — sunshine, daytime warmth and dryness in one number, per month.


At a glance
| Haikou (Meilan) | Beihai | |
|---|---|---|
| Sunshine hours / year | 1,736 | 1,590 |
| Sunniest month | February (84/100) | February (82/100) |
| Nov–Feb average score | 80/100 | 80/100 |
| Jun–Aug average score | 61/100 | 60/100 |
| Rain / year | 1,841 mm | 1,771 mm |
| Warmest sea | 32°C / 90°F | 32°C / 90°F |
| Peak midday UV | 10 (very high) | 9 (very high) |
Haikou (Meilan) vs Beihai month by month
| Month | Sunshine Score | Day high °C | Rain mm | Sea °C | ||||
|---|---|---|---|---|---|---|---|---|
| Haikou (Meilan) | Beihai | Haikou (Meilan) | Beihai | Haikou (Meilan) | Beihai | Haikou (Meilan) | Beihai | |
| January | 83 | 79 | 21° | 20° | 33 | 46 | 21° | 19° |
| February | 84 | 82 | 22° | 22° | 28 | 32 | 22° | 19° |
| March | 80 | 77 | 25° | 24° | 47 | 57 | 23° | 21° |
| April | 73 | 72 | 28° | 27° | 88 | 86 | 28° | 29° |
| May | 61 | 60 | 30° | 30° | 190 | 156 | 29° | 30° |
| June | 61 | 60 | 30° | 30° | 205 | 265 | 31° | 31° |
| July | 61 | 60 | 30° | 31° | 236 | 332 | 31° | 32° |
| August | 61 | 60 | 30° | 30° | 313 | 363 | 32° | 32° |
| September | 61 | 60 | 29° | 30° | 293 | 231 | 31° | 31° |
| October | 61 | 68 | 28° | 28° | 278 | 108 | 28° | 28° |
| November | 74 | 77 | 25° | 25° | 81 | 60 | 26° | 25° |
| December | 80 | 81 | 22° | 21° | 49 | 35 | 21° | 20° |
The sunnier month by month: Jan Haikou (Meilan) · Feb even · Mar Haikou (Meilan) · Apr even · May even · Jun even · Jul even · Aug even · Sep even · Oct Beihai · Nov Beihai · Dec even.
When to pick which
- November–February: too close to call — Haikou (Meilan) averages 80/100, Beihai 80/100. Daytime highs are similar (23°C vs 22°C). See the winter sun ranking.
- March–May: too close to call — Haikou (Meilan) averages 71/100, Beihai 70/100. Daytime highs are similar (28°C vs 27°C).
- June–August: too close to call — Haikou (Meilan) averages 61/100, Beihai 60/100. Daytime highs are similar (30°C vs 30°C).
- September–October: Beihai (average score 64/100 vs 61). Daytime highs are similar (29°C vs 29°C).
Sea temperature
Both seas peak at 32°C / 90°F. Swimmable water (21°C+): Haikou (Meilan) all year, Beihai about 9 months a year. Month-by-month sea temperatures are in the table above.
Full month-by-month guides: Haikou (Meilan) weather by month · Beihai weather by month · Best time to visit China.
More comparisons: Haikou (Meilan) vs Zhanjiang · Haikou (Meilan) vs Sanya (Tianya) · Haikou (Meilan) vs Qionghai (Basuo) · Beihai vs Nanning (Jiangnan) · Beihai vs Zhanjiang · Beihai vs Liuzhou (Liujiang) · all head-to-heads